APA (7th ed.) Citation

United Nations Environment Programme. (1991). Register of international treaties and other agreements in the field of environment. United Nations Environment Programme.

Chicago Style (17th ed.) Citation

United Nations Environment Programme. Register of International Treaties and Other Agreements in the Field of Environment. Nairobi: United Nations Environment Programme, 1991.

MLA (9th ed.) Citation

United Nations Environment Programme. Register of International Treaties and Other Agreements in the Field of Environment. United Nations Environment Programme, 1991.

Warning: These citations may not always be 100% accurate.